| 1 | /* |
| 2 | * (C) GraÅžvydas "notaz" Ignotas, 2010-2012 |
| 3 | * |
| 4 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. |
| 5 | * See the COPYING file in the top-level directory. |
| 6 | */ |
| 7 | |
| 8 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | |
| 11 | #include "../SDL_sysvideo.h" |
| 12 | #include "../SDL_pixels_c.h" |
| 13 | #include "../../events/SDL_events_c.h" |
| 14 | |
| 15 | #include "linux/xenv.h" |
| 16 | #include "osdl.h" |
| 17 | |
| 18 | |
| 19 | static int omap_available(void) |
| 20 | { |
| 21 | trace(); |
| 22 | return 1; |
| 23 | } |
| 24 | |
| 25 | static void omap_free(SDL_VideoDevice *device) |
| 26 | { |
| 27 | trace(); |
| 28 | free(device); |
| 29 | } |
| 30 | |
| 31 | static int omap_VideoInit(SDL_VideoDevice *this, SDL_PixelFormat *vformat) |
| 32 | { |
| 33 | const char *tmp; |
| 34 | int w, h, ret; |
| 35 | |
| 36 | trace(); |
| 37 | |
| 38 | // default to 16bpp |
| 39 | vformat->BitsPerPixel = 16; |
| 40 | |
| 41 | omapsdl_input_init(); |
| 42 | omapsdl_config(this->hidden); |
| 43 | |
| 44 | tmp = getenv("SDL_OMAP_DEFAULT_MODE"); |
| 45 | if (tmp != NULL && sscanf(tmp, "%dx%d", &w, &h) == 2) { |
| 46 | this->info.current_w = w; |
| 47 | this->info.current_h = h; |
| 48 | } |
| 49 | else if (osdl_video_detect_screen(this->hidden) == 0) { |
| 50 | this->info.current_w = this->hidden->phys_w; |
| 51 | this->info.current_h = this->hidden->phys_h; |
| 52 | } |
| 53 | |
| 54 | this->handles_any_size = 1; |
| 55 | this->info.hw_available = 1; |
| 56 | |
| 57 | return 0; |
| 58 | } |
| 59 | |
| 60 | static void omap_VideoQuit(SDL_VideoDevice *this) |
| 61 | { |
| 62 | trace(); |
| 63 | |
| 64 | osdl_video_finish(this->hidden); |
| 65 | this->screen->pixels = NULL; |
| 66 | omapsdl_input_finish(); |
| 67 | } |
| 68 | |
| 69 | static SDL_Rect **omap_ListModes(SDL_VideoDevice *this, SDL_PixelFormat *format, Uint32 flags) |
| 70 | { |
| 71 | static SDL_Rect omap_mode_max = { |
| 72 | /* with handles_any_size, should accept anything up to this |
| 73 | * XXX: possibly set this dynamically based on free vram? */ |
| 74 | 0, 0, 1600, 1200 |
| 75 | }; |
| 76 | /* broken API needs this stupidity */ |
| 77 | static SDL_Rect *omap_modes[] = { |
| 78 | &omap_mode_max, |
| 79 | NULL |
| 80 | }; |
| 81 | |
| 82 | trace(); |
| 83 | |
| 84 | if (format->BitsPerPixel <= 8) |
| 85 | // not (yet?) supported |
| 86 | return NULL; |
| 87 | |
| 88 | return omap_modes; |
| 89 | } |
| 90 | |
| 91 | static SDL_Surface *omap_SetVideoMode(SDL_VideoDevice *this, SDL_Surface *current, int width, |
| 92 | int height, int bpp, Uint32 flags) |
| 93 | { |
| 94 | struct SDL_PrivateVideoData *pdata = this->hidden; |
| 95 | SDL_PixelFormat *format; |
| 96 | Uint32 unhandled_flags; |
| 97 | int doublebuf; |
| 98 | void *fbmem; |
| 99 | |
| 100 | trace("%d, %d, %d, %08x", width, height, bpp, flags); |
| 101 | |
| 102 | omapsdl_config_from_env(pdata); |
| 103 | |
| 104 | switch (bpp) { |
| 105 | case 16: |
| 106 | format = SDL_ReallocFormat(current, 16, 0xf800, 0x07e0, 0x001f, 0); |
| 107 | break; |
| 108 | case 24: |
| 109 | format = SDL_ReallocFormat(current, 24, 0xff0000, 0xff00, 0xff, 0); |
| 110 | break; |
| 111 | case 32: |
| 112 | format = SDL_ReallocFormat(current, 32, 0xff0000, 0xff00, 0xff, 0); |
| 113 | break; |
| 114 | default: |
| 115 | err("SetVideoMode: bpp %d not supported", bpp); |
| 116 | return NULL; |
| 117 | } |
| 118 | if (format == NULL) |
| 119 | return NULL; |
| 120 | |
| 121 | if (!(flags & SDL_DOUBLEBUF) && pdata->cfg_force_doublebuf) { |
| 122 | log("forcing SDL_DOUBLEBUF"); |
| 123 | flags |= SDL_DOUBLEBUF; |
| 124 | } |
| 125 | |
| 126 | if (pdata->border_l | pdata->border_r | pdata->border_t | pdata->border_b) { |
| 127 | if (pdata->border_l + pdata->border_r >= width |
| 128 | || pdata->border_t + pdata->border_b >= height) |
| 129 | { |
| 130 | err("specified border too large, ignoring"); |
| 131 | pdata->border_l = pdata->border_r = pdata->border_t = pdata->border_b = 0; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | doublebuf = (flags & SDL_DOUBLEBUF) ? 1 : 0; |
| 136 | fbmem = osdl_video_set_mode(pdata, |
| 137 | pdata->border_l, pdata->border_r, pdata->border_t, pdata->border_b, |
| 138 | width, height, bpp, &doublebuf); |
| 139 | if (fbmem == NULL) { |
| 140 | err("failing on mode %dx%d@%d, doublebuf %s, border %d,%d,%d,%d", |
| 141 | width, height, bpp, (flags & SDL_DOUBLEBUF) ? "on" : "off", |
| 142 | pdata->border_l, pdata->border_r, pdata->border_t, pdata->border_b); |
| 143 | return NULL; |
| 144 | } |
| 145 | if ((flags & SDL_DOUBLEBUF) && !doublebuf) { |
| 146 | log("doublebuffering could not be set\n"); |
| 147 | flags &= ~SDL_DOUBLEBUF; |
| 148 | } |
| 149 | |
| 150 | flags |= SDL_FULLSCREEN | SDL_HWSURFACE; |
| 151 | unhandled_flags = flags & ~(SDL_FULLSCREEN | SDL_HWSURFACE | SDL_DOUBLEBUF); |
| 152 | if (unhandled_flags != 0) { |
| 153 | log("dropping unhandled flags: %08x", unhandled_flags); |
| 154 | flags &= ~unhandled_flags; |
| 155 | } |
| 156 | |
| 157 | current->flags = flags; |
| 158 | current->w = width; |
| 159 | current->h = height; |
| 160 | current->pitch = SDL_CalculatePitch(current); |
| 161 | current->pixels = fbmem; |
| 162 | pdata->app_uses_flip = 0; |
| 163 | |
| 164 | if (pdata->layer_w != 0 && pdata->layer_h != 0) { |
| 165 | int v_width = width - (pdata->border_l + pdata->border_r); |
| 166 | int v_height = height - (pdata->border_t + pdata->border_b); |
| 167 | pdata->ts_xmul = (v_width << 16) / pdata->layer_w; |
| 168 | pdata->ts_ymul = (v_height << 16) / pdata->layer_h; |
| 169 | } |
| 170 | |
| 171 | return current; |
| 172 | } |
| 173 | |
| 174 | static int omap_LockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface) |
| 175 | { |
| 176 | trace("%p", surface); |
| 177 | |
| 178 | return 0; |
| 179 | } |
| 180 | |
| 181 | static void omap_UnlockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface) |
| 182 | { |
| 183 | trace("%p", surface); |
| 184 | } |
| 185 | |
| 186 | static int omap_FlipHWSurface(SDL_VideoDevice *this, SDL_Surface *surface) |
| 187 | { |
| 188 | struct SDL_PrivateVideoData *pdata = this->hidden; |
| 189 | |
| 190 | trace("%p", surface); |
| 191 | |
| 192 | surface->pixels = osdl_video_flip(pdata); |
| 193 | pdata->app_uses_flip = 1; |
| 194 | |
| 195 | return 0; |
| 196 | } |
| 197 | |
| 198 | /* we can't do hw surfaces (besides screen one) yet */ |
| 199 | static int omap_AllocHWSurface(SDL_VideoDevice *this, SDL_Surface *surface) |
| 200 | { |
| 201 | trace("%p", surface); |
| 202 | return -1; |
| 203 | } |
| 204 | |
| 205 | static void omap_FreeHWSurface(SDL_VideoDevice *this, SDL_Surface *surface) |
| 206 | { |
| 207 | trace("%p", surface); |
| 208 | } |
| 209 | |
| 210 | static int omap_SetColors(SDL_VideoDevice *this, int firstcolor, int ncolors, SDL_Color *colors) |
| 211 | { |
| 212 | trace("%d, %d, %p", firstcolor, ncolors, colors); |
| 213 | return 0; |
| 214 | } |
| 215 | |
| 216 | static void omap_UpdateRects(SDL_VideoDevice *this, int nrects, SDL_Rect *rects) |
| 217 | { |
| 218 | struct SDL_PrivateVideoData *pdata = this->hidden; |
| 219 | |
| 220 | trace("%d, %p", nrects, rects); |
| 221 | |
| 222 | /* for doublebuf forcing on apps */ |
| 223 | if (nrects == 1 && rects->x == 0 && rects->y == 0 |
| 224 | && !pdata->app_uses_flip && (this->screen->flags & SDL_DOUBLEBUF) |
| 225 | && rects->w == this->screen->w && rects->h == this->screen->h) |
| 226 | { |
| 227 | this->screen->pixels = osdl_video_flip(pdata); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | static void omap_InitOSKeymap(SDL_VideoDevice *this) |
| 232 | { |
| 233 | trace(); |
| 234 | } |
| 235 | |
| 236 | static int key_event_cb(void *cb_arg, int sdl_kc, int is_pressed) |
| 237 | { |
| 238 | SDL_keysym keysym = { 0, }; |
| 239 | |
| 240 | keysym.sym = sdl_kc; |
| 241 | SDL_PrivateKeyboard(is_pressed, &keysym); |
| 242 | } |
| 243 | |
| 244 | /* clamp x to min..max-1 */ |
| 245 | #define clamp(x, min, max) \ |
| 246 | if (x < (min)) x = min; \ |
| 247 | if (x >= (max)) x = max |
| 248 | |
| 249 | static int ts_event_cb(void *cb_arg, int x, int y, unsigned int pressure) |
| 250 | { |
| 251 | static int was_pressed; |
| 252 | SDL_VideoDevice *this = cb_arg; |
| 253 | struct SDL_PrivateVideoData *pdata = this->hidden; |
| 254 | int xoffs; |
| 255 | |
| 256 | if (!pdata->cfg_no_ts_translate && pdata->layer_w != 0 && pdata->layer_h != 0) { |
| 257 | x = pdata->border_l + ((x - pdata->layer_x) * pdata->ts_xmul >> 16); |
| 258 | y = pdata->border_t + ((y - pdata->layer_y) * pdata->ts_ymul >> 16); |
| 259 | clamp(x, 0, this->screen->w); |
| 260 | clamp(y, 0, this->screen->h); |
| 261 | } |
| 262 | |
| 263 | SDL_PrivateMouseMotion(0, 0, x, y); |
| 264 | |
| 265 | pressure = !!pressure; |
| 266 | if (pressure != was_pressed) { |
| 267 | SDL_PrivateMouseButton(pressure ? SDL_PRESSED : SDL_RELEASED, 1, 0, 0); |
| 268 | was_pressed = pressure; |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | static void omap_PumpEvents(SDL_VideoDevice *this) |
| 273 | { |
| 274 | struct SDL_PrivateVideoData *pdata = this->hidden; |
| 275 | int dummy; |
| 276 | |
| 277 | trace(); |
| 278 | |
| 279 | omapsdl_input_get_events(0, key_event_cb, ts_event_cb, this); |
| 280 | |
| 281 | // XXX: we might want to process some X events too |
| 282 | if (pdata->xenv_up) |
| 283 | xenv_update(&dummy); |
| 284 | } |
| 285 | |
| 286 | static SDL_VideoDevice *omap_create(int devindex) |
| 287 | { |
| 288 | SDL_VideoDevice *this; |
| 289 | |
| 290 | this = calloc(1, sizeof(*this) + sizeof(*this->hidden)); |
| 291 | if (this == NULL) { |
| 292 | SDL_OutOfMemory(); |
| 293 | return 0; |
| 294 | } |
| 295 | this->hidden = (void *)(this + 1); |
| 296 | this->VideoInit = omap_VideoInit; |
| 297 | this->ListModes = omap_ListModes; |
| 298 | this->SetVideoMode = omap_SetVideoMode; |
| 299 | this->LockHWSurface = omap_LockHWSurface; |
| 300 | this->UnlockHWSurface = omap_UnlockHWSurface; |
| 301 | this->FlipHWSurface = omap_FlipHWSurface; |
| 302 | this->AllocHWSurface = omap_AllocHWSurface; |
| 303 | this->FreeHWSurface = omap_FreeHWSurface; |
| 304 | this->SetColors = omap_SetColors; |
| 305 | this->UpdateRects = omap_UpdateRects; |
| 306 | this->VideoQuit = omap_VideoQuit; |
| 307 | this->InitOSKeymap = omap_InitOSKeymap; |
| 308 | this->PumpEvents = omap_PumpEvents; |
| 309 | this->free = omap_free; |
| 310 | |
| 311 | return this; |
| 312 | } |
| 313 | |
| 314 | VideoBootStrap omapdss_bootstrap = { |
| 315 | "omapdss", "OMAP DSS2 Framebuffer Driver", |
| 316 | omap_available, omap_create |
| 317 | }; |
| 318 | |